Shingle-saw machine



July 28, 1925. v. 1,547,604

J. H. MINER sluNGLE sAw MACHINE Filed Nov. 8. 192:5

Alga.

Patented July 28, 1925.

UNITED STATES JAMES H IviINERy or MERIDIAN, MISSISSIPPI.

SHINGLE-SAW MACHINE.

Application led November 8, 1923.

T all whom t 'ma-y concern.'

Be it known that I., JAMES H. MINER, a citizen of the United States, andresident of Meridian, inthe county of Lauderdale and State ofMississippi, have invented certain new and useful Improvements inShingle- Saw Machines, of which the following is a specification.

My present invention relates to improvements in shingle sawing machines,and aims to provide a simple, economical and efficient machine, or formof apparatus in which the shingle block or cant may be manipulated tocut the maximum number of shingles thereform without danger to theoperator.

Vith this and other objects in view, the

invention includesV the novel features of construction and'arrangementand combination of parts hereinafter described and particularly definedin the appended claims. l

An embodiment of my invention is illustrated in the accompanyingdrawings, in which Figure 1 is a plan view, and y Fig. 2 is a transversesection on line 2 2 of Fig. l.

It will be understood in these drawings, that no attempt has been madeto show in detail parts of the shingle sawing apparatus, outside of theparticular portions involving my invention, other parts being shown in aconventional manner.

Referring by reference characters to this drawing, the numeral ldesignates the frame of the machine, which may be of the ordinary or anydesired construction, and which is provided with a saw shaft 2 journaledin suitable bearings and carrying at one end a circular saw 3, and atthe opposite end a drive pulley 4 designed to be driven by a belt fromany suitable source of power. Upon this frame is slidably mounted atable or slide 5, for supporting the block 6 from which the shingle isto be cut, this slide being mounted upon guide rails 7 so as to have arectilinear motion in the plane of the saw, it being of course,understood that the slide or table has its upper surface parallel tothis plane, or in other Words, in a plane parallel to the axis of thesaw. The table or slide in the simple form of the machine illustrated inthese drawings, and in which my invention is embodied, is designed to bereciprocated by hand to effect the cutting of -the shingles, but it isof course., 0b-

Seral No. 673,509.

vious that power could be employed if desired for this reciprocatingpurpose. Stops limit the backward movement of the carrlage.

The 'position of the shingle block relative to the saw for gauging thecut, is determined by a tilting gauge comprising a hori- Zontallydisposed bar 8 fulcrumed on a vertical piv'ot carried by the frame ofthe machine, and having upstanding gauge fingers 8a which may beintegral with the bar, and which are positioned so that when the tableor slide is in its retracted position, these fingers engage theA outerface of the block, the limited tilting of the gauge on its vertical axislimited by stop la determining the ,position of the block relative tothe saw, and whether the saw will cutthe thick or the thin edge of theshingle first, as will be well understood vby those skilled in the art.It will be understood that in the simple embodiment of my inventionshown, the tilting of the block upon the table is effected/by the handsof the operator, and thereafter it is maintained in position by itsweight, supplemented by the pressure of the hands of the operator, asthe table or slide is moved forward to cause the saw to sever theshingle.

As the block narrows in width, from the cutting of successive shinglestherefrom, it finally reaches a point where it would be dangerous to theoperator to Vhold it firmly during the movement of the table orcarriage, and this has, in the past, resulted in the waste of much goodshingle material. To avoid this, l provide a dogging device in the shapeof a. lever arm 9, fulcrumed upon a horizontal pivot 9a at the rear ofthe table, and provided with one or more `projections 9b. This cloggingarm is capable of being swung back out of the way in the position shownin dotted lines in Fig. 2, during the initial cutting of the block, butafter the block has been cut to a point where it is unsafe for theoperator to hold it directly by his hands, the dogging lever is throwndown with a hammer action, into the position shown in full lines in Fig.2, causing the projection to penetrate the upper surface of the shingleblock. The lever 9 is fulcrumed on the slide or carriage at a pointmidway of the length of the shingle block so that the projection 9",when in engagement with the shingle block, does not prevent the actionof the tilting gauge. The lever is made in tvvo parts, slidingly ortelescopically connected together, and this may conveniently beaccomplished by providing an inner part 9c pivoted to the table asaforesaid, this part having a non-circular longitudinal opening toslidably engage an outer non-circular bar member 9d, Which is providedWith the projection or projections aforesaid.

` Another feature of the present invention is the provision of means bywhich the apparatus may be readily used to cut the shingle blocks of therequired lengths pre paratoryto their being divided into shingles. Toaccomplish this, the tilting member 8 is made readily removable byhaving its pivot pin detachably connected with the horizontal framemember lb, and this frame member or bar is projected to the front or sawside of the machine and provided with an upstanding abutment or stopmember b. By removing the tilting member 8, and positioning the carriageso that a shingle slab may be placed on the carriage betvveen its endabutment 5b andthe fulcrum lugs of dogging lever 9, the end of the slabmay be positioned against stop which gauges the slab for cutting theproper length block, When the carriage is moved tovvard the saw. Duringthis operation the clogging lever may be swung back out, of the Way,asshoWn in dotted lines in F ig. 2.

Having thus described my invention, what I claim is l. In a shingle savvmachine of the class described, the combinati-on With the travelingblock supportingV carriage having a tilting gauge for the block, of asingle lever arm supported above the carriage and disposed in a planepassing through the axis of said gauge, said lever arm having aprojection for engaging the block midway of the length thereof.

2. In a shingle sawing machine of the class described, the combinationwith the travelling carriage, of a lever arm pivotally supported abovethe carriage, and having a slidable part carrying a block engagingprojection.

3. In a shingle sawing machine of the class described, the combinationWith the travelling carriage, of a lever arm pivotally supported abovethe carriage, and having a slidable part carrying a block engagingprojection, said lever being pivoted at a point midway of the length ofthe carriage so that the projection Will engage the block centrally ofthe length thereof.

In testimony whereof, I affix my signature.

JAMES Minne.

